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Two stable isotopes of lithium and have respective abundances of 7.5% and 92.5%. These isotopes have masses 6.01512 u and 7.01600 u, respectively. Find the atomic mass of lithium. Ans)(6.01512*7.5/100)+(7.01600*92.5/100)=6.940934
which electromagnetic wave is used to detect forged documents
Explain about the monochromaticity of laser. Monochromaticity: The light emitted through a laser is monochromatic, that is this is of one wavelength (colour). Although in ca
When a driver brakes an automobile, the friction between the brake drums and the brake shoes converts the car's kinetic energy to thermal energy. If a 1450 kg automobile traveling
How can time delay between the different modes be reduced? The time delay between the various modes can be reduced when (a) the rays traveling off axis to the fiber are spee
Q. Double convex lenses are to be manufactured from a glass of refractive index1.55, With both faces of the same radius of curvature. What is the radius of curvature? Required if
propeties of ceramics
At 200.0 K, silicon has 3.79 x 10 -18 free electrons per atom. How many free electrons/cm 3 are there in silicon at this temperature?
(i) Meter : The presently accepted definition of meter is the length of path travelled by light in space in 1/299,792,458th second. (ii) Kilogram : Kilogram is the fundamental
There are a variety of patterns that could be generates through vibrations inside a string, slinky, or rope. Every pattern corresponds to vibrations that occur at a particular freq
Jonathan, with a mass of 81 kg, starts at rest from the top of a water slide angled at 42° from the ground. He exits at the bottom 3.0 s later going 15 m/s. What is μk?
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